Friction-closure.



J. M. HOTHERSALL. rmcnow CLOSURE.

APPLICATION FILED APR 4, 19M- 1,162,694. Fig.2 4

Patented Nov. 30, 1915.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, JOHN M. HOTHERSALL, a citizen of the United States,'residing in rooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Friction-Closures, of which. the following is a specification.

This invention relates to a friction closure suitable for closin varnish cans and similar uses. And the invention consists in the combination with the cylindrical can neck of an inverted cup-shaped frictional gripping cap the flange of which is bent into outward projections at intervals which may be flattened to loosen the grip in removing the cap.

In the accompanying drawing, Figure 1 is an elevation of a varnish can; Fig. 2 a similar view of the. friction grip closure; Fig. 3 a plan view of the varnish can; Fig. 4 a section on the line 44 of Fig. 2 of the can neck and its friction grip cap, the latter b to the former; Fig. 5 a bottom view of the friction grip cap; and Fig. 6 a section on the line 66 of Fig. 5 of the friction grip cap.

The object of the invention is to produce a sheet metal friction grip cap suitable to be applied to close for example the mouth of a varnish can, said cap being so contrived that it may be readily put on and pressed down to a tight closure, when it will grip the can mouth so closely that it cannot under ordinary conditions be removed, and further so contrived that by the application of lateral pressure flattening down outward projections the grip of the cap may be so loosened that it can thereafter be readily removed and slipped on and off.

In said drawing, A is an ordinary varnish can having a neck B terminating at its up per end with a stiffened cylindric collar C, D is the inverted cup-shaped cap having the vertical downwardly projecting flange d. At intervals in the circumference of the flange d the outward projections e are formed preferably extending upward from the lower edge of said flange to about onehalf its width. These projections give a neck; a packing Patented Nov. 30, 1915.

Application filed April 4, 1914. Serial No. 829,489.

of lateral resilience to the haped cap, the flange of which should fit very closely about the cylindric collar of the can mouth. In the interior of the ca there is shown, in the example illustrated a packlng ring f and a packing disk g, useful to effect a. hquid-tight closure. A notable fact connected with the use of such a cap as that hereln shown, is that when the same e projections flange containing them, the cylindric can neck collar. owever, after the cap is once applied and thus firmly secured it may be easily loosened by simply flattening down t e pro ections in the cap flange which enand loosens the frictional grip so that thereafter the cap can easily be slipped on and off.

When the cap is first applied and while it is exerting its frictional grip it holds its place very rmly as may be illustrated by in conjunction with e pressure was so great as to bulge the can itself out of shape. This closure is exceedingly cheap and possesses in itself the function of a closure which will permlt the contents to be shipped safely and which may be readily changed to one which can be slipped on and ofl with the fingers easily. I

I claim:

disk and ring loosely a plied to the mouth of said neck on said horizontal fl a depending cylindrical flange provide with outward projections at intervals of its tight frictional engagement around said circiilmfersnce, 'ghich giaytetet reigidigy f ilaltvertical friction wall of the neck. tene,sa1 cap einga a o e orcl y H applied over the mouth 0 said neck to force 1 JOHN :HOTHERSAI I 5 said packing rin against said packing disk Witnesses: to form a liqui tight closure of the con- 7 C. W. GRAHAM, tainer, the fiange'of said cap having then a W. D. Fos'mn. 

